Bremecker, Daniel ; Lalitha, K. V. ; Teuber, Siegfried ; Koruza, Jurij ; Rödel, Jürgen (2023)
Influence of Zn²⁺ doping on the morphotropic phase boundary in lead‐free piezoelectric (1 – x)Na₁/₂Bi₁/₂TiO₃‐xBaTiO₃.
In: Journal of the American Ceramic Society, 2021, 105 (2)
doi: 10.26083/tuprints-00020986
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
A series of morphotropic phase boundary (MPB) compositions of (1–x)Na₁/₂Bi₁/₂TiO₃‐xBaTiO₃ (x = 0.05, 0.055, 0.06, 0.065, 0.07), with and without 0.5 mol% Zn‐doping was synthesized using the solid‐state route. The samples were characterized using X‐ray diffraction, dielectric analysis, and electromechanical measurements (piezoelectric d₃₃ coefficient, coupling factor kp, mechanical quality factor Qm, and internal bias field Ebias). The increase in the ferroelectric‐relaxor transition temperature upon Zn‐doping was accompanied by a shift of the MPB toward the Na₁/₂Bi₁/₂TiO₃‐rich side of the phase diagram. Higher tetragonal phase fraction and increased tetragonal distortion were noted for Zn‐doped (1 – x)Na₁/₂Bi₁/₂TiO₃‐xBaTiO₃. In addition, ferroelectric hardening and the presence of an internal bias field (Ebias) were observed for all doped compositions. The piezoelectric constant d₃₃ and the coupling coefficient kp decreased by up to ∼30%, while a 4‐ to 6‐fold increase in Qm was observed for the doped compositions. Apart from establishing a structure–property correlation, these results highlight the chemically induced shift of the phase diagram upon doping, which is a crucial factor in material selection for optimal performance and commercialization.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Bremecker, Daniel ; Lalitha, K. V. ; Teuber, Siegfried ; Koruza, Jurij ; Rödel, Jürgen |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Influence of Zn²⁺ doping on the morphotropic phase boundary in lead‐free piezoelectric (1 – x)Na₁/₂Bi₁/₂TiO₃‐xBaTiO₃ |
| Sprache: | Englisch |
| Publikationsjahr: | 11 Dezember 2023 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2021 |
| Ort der Erstveröffentlichung: | Oxford |
| Verlag: | Wiley-Blackwell |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the American Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 105 |
| (Heft-)Nummer: | 2 |
| DOI: | 10.26083/tuprints-00020986 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/20986 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | A series of morphotropic phase boundary (MPB) compositions of (1–x)Na₁/₂Bi₁/₂TiO₃‐xBaTiO₃ (x = 0.05, 0.055, 0.06, 0.065, 0.07), with and without 0.5 mol% Zn‐doping was synthesized using the solid‐state route. The samples were characterized using X‐ray diffraction, dielectric analysis, and electromechanical measurements (piezoelectric d₃₃ coefficient, coupling factor kp, mechanical quality factor Qm, and internal bias field Ebias). The increase in the ferroelectric‐relaxor transition temperature upon Zn‐doping was accompanied by a shift of the MPB toward the Na₁/₂Bi₁/₂TiO₃‐rich side of the phase diagram. Higher tetragonal phase fraction and increased tetragonal distortion were noted for Zn‐doped (1 – x)Na₁/₂Bi₁/₂TiO₃‐xBaTiO₃. In addition, ferroelectric hardening and the presence of an internal bias field (Ebias) were observed for all doped compositions. The piezoelectric constant d₃₃ and the coupling coefficient kp decreased by up to ∼30%, while a 4‐ to 6‐fold increase in Qm was observed for the doped compositions. Apart from establishing a structure–property correlation, these results highlight the chemically induced shift of the phase diagram upon doping, which is a crucial factor in material selection for optimal performance and commercialization. |
| Freie Schlagworte: | lead‐free, morphotropic phase boundary, Na₁/₂Bi₁/₂TiO₃‐xBaTiO₃, piezoceramic, Zn‐doping |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-209866 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 540 Chemie 600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe |
| Hinterlegungsdatum: | 11 Dez 2023 14:05 |
| Letzte Änderung: | 12 Dez 2023 09:27 |
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Verfügbare Versionen dieses Eintrags
- Influence of Zn²⁺ doping on the morphotropic phase boundary in lead‐free piezoelectric (1 – x)Na₁/₂Bi₁/₂TiO₃‐xBaTiO₃. (deposited 11 Dez 2023 14:05) [Gegenwärtig angezeigt]
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